Multilingual Information Access Evaluation I. Text Retrieval Experiments

The tenth campaign of the Cross Language Evaluation Forum (CLEF) for European languages was held from January to September 2009. There were eight main eval- tion tracks in CLEF 2009 plus a pilot task. The aim, as usual, was to test the perfo- ance of a wi

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Editorial Board David Hutchison Lancaster University, UK Takeo Kanade Carnegie Mellon University, Pittsburgh, PA, USA Josef Kittler University of Surrey, Guildford, UK Jon M. Kleinberg Cornell University, Ithaca, NY, USA Alfred Kobsa University of California, Irvine, CA, USA Friedemann Mattern ETH Zurich, Switzerland John C. Mitchell Stanford University, CA, USA Moni Naor Weizmann Institute of Science, Rehovot, Israel Oscar Nierstrasz University of Bern, Switzerland C. Pandu Rangan Indian Institute of Technology, Madras, India Bernhard Steffen TU Dortmund University, Germany Madhu Sudan Microsoft Research, Cambridge, MA, USA Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA Gerhard Weikum Max Planck Institute for Informatics, Saarbruecken, Germany

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Carol Peters Giorgio Maria Di Nunzio Mikko Kurimo Thomas Mandl Djamel Mostefa Anselmo Peñas Giovanna Roda (Eds.)

Multilingual Information Access Evaluation I Text Retrieval Experiments 10th Workshop of the Cross-Language Evaluation Forum, CLEF 2009 Corfu, Greece, September 30 - October 2, 2009 Revised Selected Papers

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Volume Editors Carol Peters ISTI-CNR, Area Ricerca CNR 56124 Pisa, Italy E-mail: [email protected] Giorgio Maria Di Nunzio University of Padua 35131 Padova, Italy E-mail: [email protected] Mikko Kurimo Aalto University 00076 Aalto, Finland E-mail: [email protected] Thomas Mandl University of Hildesheim 31141 Hildesheim, Germany E-mail: [email protected]

Djamel Mostefa ELDA/ELRA, 75013 Paris, France E-mail: [email protected] Anselmo Peñas LSI-UNED, 28040 Madrid, Spain E-mail: [email protected] Giovanna Roda Matrixware, 1060 Vienna, Austria E-mail: [email protected]

Managing Editors Pamela Forner and Danilo Giampiccolo CELCT, Trento, Italy Email: {forner; giampiccolo}@celct.it

Library of Congress Control Number: 2010934130 CR Subject Classification (1998): I.2.7, H.3, H.4, H.2, H.5, I.7 LNCS Sublibrary: SL 3 – Information Systems and Application, incl. Internet/Web and HCI ISSN ISBN-10 ISBN-13

0302-9743 3-642-15753-X Springer Berlin Heidelberg New York 978-3-642-15753-0 Springer Berlin Heidelberg New York

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Preface

The tenth campaign of the Cross Language Evalua